Low dewpoint energy-efficient membrane dehumidifier

WO2026107060A3PCT designated stage Publication Date: 2026-06-18TRELLIS AIR CORP
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
TRELLIS AIR CORP
Filing Date
2025-11-12
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Existing dehumidification methods, such as mechanical vapor compression and sorbent dehumidification, are energy-intensive and inefficient for achieving low dewpoints, while membrane dehumidification faces challenges with large vacuum pumps and mechanical strength limitations.

⚗Method used

A membrane-based dehumidification apparatus using a cold chamber to reduce partial pressure on the permeate side, eliminating the need for large vacuum pumps and utilizing a selective membrane to transport water vapor isothermally, with a refrigeration system and vacuum pump to manage non-condensable gases.

🎯Benefits of technology

Achieves significant energy savings and efficient dehumidification with reduced energy consumption and equipment size, maintaining air temperature while achieving low dewpoints without the need for reheating.

✦ Generated by Eureka AI based on patent content.

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Abstract

An apparatus for dehumidification comprises a membrane that selectively permeates water vapor; at least a first cold chamber in thermal connection with a refrigeration source; and a vacuum pump configured to generate gas flow through the first membrane and through the first cold chamber, wherein the cold chamber is between the membrane and the vacuum pump.
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